Using Metatags Context, can tokens be used in the description field

Hello,

I am using metatags context and have a situation in which when a user selects a destination from the Travel menu such as Travel/Philippines, it takes the destination, in this case, philippines and passes it in the url as an arguement which then that gets passed a custom panels landing page for travel and then to the views for the travel page so that data on page is reflective of the destination selected from the menu. In the context that I created for metatags, I would like to place one of the following tokens ( [menu-link:title] or [url:args:first] or [url:arg1] )in the metatag description field so that based on the travel destination selected from the menu, certain parts of the description will update with the token/arguement selected from the menu so that we will have unique descriptions. Can someone tell me if this is possible and whether or not metatags context supports tokens in the description field?

I've tried added each of the tokens listed above to the description field and I get an error stating that they are invalid tokens for that field.

Please advise.

Thanks